Table 1.
Ingredient and chemical composition of the experimental diets (as-fed basis)1
| Item | Standard protein | High-indigestible protein | High protein |
|---|---|---|---|
| Ingredient, g/kg | |||
| Corn | 418.7 | 418.7 | 418.7 |
| SBM | 216.0 | - | 286.0 |
| Autoclaved SBM2 | - | 216.0 | - |
| Cornstarch | 250.0 | 250.0 | 183.5 |
| Wheat bran | 50.0 | 50.0 | 50.0 |
| Soybean oil | 10.0 | 10.0 | 10.0 |
| MCP | 7.1 | 7.1 | 7.1 |
| Limestone | 10.8 | 10.8 | 10.8 |
| Salt | 4.0 | 4.0 | 4.0 |
| L-Lysine HCl | 2.1 | 2.1 | - |
| DL-Methionine | 0.7 | 0.7 | - |
| L-Threonine | 0.7 | 0.7 | - |
| Cr2O3 premix3 | 25.0 | 25.0 | 25.0 |
| Vit-min premix4 | 5.0 | 5.0 | 5.0 |
| Total | 1,000.0 | 1,000.0 | 1,000.0 |
| Analyzed composition5 | |||
| DM, g/kg | 866 | 862 | 867 |
| GE, kcal/kg | 3,840 | 3,799 | 3,872 |
| CP, g/kg | 137 | 138 | 166 |
| NDF, g/kg | 63 | 129 | 67 |
1MCP, monocalcium phosphate; SBM, soybean meal; Vit-min premix, vitamin-mineral premix.
2Autoclaved at 135 °C for 60 min.
35 g chromic oxide plus 20 g ground corn.
4Provided the following quantities per kg of complete diet: vitamin A, 8,575 IU; vitamin D3, 4,300 IU; vitamin E, 28.6 IU; menadione, 7.3 mg; riboflavin, 9.2 mg; D-pantothenic acid, 18.3 mg; niacin, 73.5 mg; choline chloride, 1,285 mg; vitamin B12, 0.02 mg; biotin, 0.09 mg; thiamine mononitrate, 3.7 mg; folic acid, 1.7 mg; pyridoxine hydrochloride, 5.5 mg; I, 1.9 mg as calcium iodate; Mn, 180 mg as manganese sulfate; Cu, 7.4 mg as copper sulfate; Fe, 73.5 mg as ferrous sulfate; Zn, 180 mg as zinc sulfate; Se, 0.4 mg.
5CP, crude protein; DM, dry matter; GE, gross energy; NDF, neutral detergent fiber.